| Keyword search (4,163 papers available) | ![]() |
"Ghrelin" Keyword-tagged Publications:
| Title | Authors | PubMed ID | |
|---|---|---|---|
| 1 | Energetic demands of lactation produce an increase in the expression of growth hormone secretagogue receptor in the hypothalamus and ventral tegmental area of the rat despite a reduction in circulating ghrelin | Wellman M; Budin R; Woodside B; Abizaid A; | 35365872 PSYCHOLOGY |
| 2 | Ghrelin receptor signalling is not required for glucocorticoid-induced obesity in female mice | Silver Z; Abbott-Tate S; Hyland L; Sherratt F; Woodside B; Abizaid A; | 34060474 CSBN |
| 3 | A role for leptin and ghrelin in the augmentation of heroin seeking induced by chronic food restriction. | D'Cunha TM, Chisholm A, Hryhorczuk C, Fulton S, Shalev U | 31811350 PSYCHOLOGY |
| 4 | Central ghrelin receptor stimulation modulates sex motivation in male rats in a site dependent manner. | Hyland L, Rosenbaum S, Edwards A, Palacios D, Graham MD, Pfaus JG, Woodside B, Abizaid A | 29080670 CSBN |
| Title: | Ghrelin receptor signalling is not required for glucocorticoid-induced obesity in female mice | ||||
| Authors: | Silver Z, Abbott-Tate S, Hyland L, Sherratt F, Woodside B, Abizaid A | ||||
| Link: | https://pubmed.ncbi.nlm.nih.gov/34060474/ | ||||
| DOI: | 10.1530/JOE-20-0579 | ||||
| Publication: | The Journal of endocrinology | ||||
| Keywords: | GHSR; corticosterone; ghrelin; glucose tolerance; metabolism; obesity; | ||||
| PMID: | 34060474 | Category: | Date Added: | 2021-06-01 | |
| Dept Affiliation: |
CSBN
1 Z Silver, Neuroscience, Carleton University, Ottawa, Canada. 2 S Abbott-Tate, Neuroscience, Carleton University, Ottawa, Canada. 3 L Hyland, Neuroscience, Carleton University, Ottawa, Canada. 4 F Sherratt, Neuroscience, Carleton University, Ottawa, Canada. 5 B Woodside, Center for Studies in Behavioural Neurobiology, Concordia University, Montreal, Canada. 6 A Abizaid, Neuroscience, Carleton University, Ottawa, K1S 5B6, Canada. |
||||
Description: |
Chronic exposure to high circulating glucocorticoid or ghrelin concentrations increases food intake, weight gain and adiposity, suggesting that ghrelin could contribute to the metabolic effects of chronic glucocorticoids. In male mice, however, blocking ghrelin receptor (GHSR) signalling increased the weight gain and adiposity induced by chronic corticosterone (CORT), rather than attenuating them. In the current study, we investigated the role of GHSR signalling in the metabolic effects of chronic exposure to high circulating CORT in female mice. To do this, female WT and GHSR KO mice were treated with either CORT in a 1% ethanol (EtOH) solution or 1% EtOH alone in their drinking water for 32 days (N=5-8/group). Body weight, food, and water intake as well as vaginal cyclicity were assessed daily. As expected, CORT treatment induced significant increases in body weight, food intake, adiposity and also impaired glucose tolerance. In contrast to results observed in male mice, WT and GHSR KO female mice did not differ on any of these parameters. Neither plasma levels of ghrelin, LEAP-2, the endogenous GHSR antagonist produced by the liver, nor their ratio were altered by chronic glucocorticoid exposure. In addition, CORT treatment disrupted vaginal cyclicity, produced a reduction in sucrose consumption and increased locomotor activity regardless of genotype. Chronic CORT also decreased exploration in WT but not GHSR KO mice. Collectively, these data suggest that most metabolic, endocrine, reproductive and behavioral effects of chronic CORT exposure are independent of GHSR signalling in female mice. |



